(19)

(11)

EP 2 678 631 A1

(12)

(43) Date of publication: 01.01.2014 Bulletin 2014/01 (21) Application number: 12703625.9 (22) Date of filing: 06.01.2012

(51) International Patent Classification (IPC):  F41G 7/22(2006.01) H01L 31/024(2006.01) H04N 5/33(2006.01) G02B 7/02(2006.01) H04N 5/225(2006.01) (86) International application number: PCT/US2012/020452 (87) International publication number: WO 2012/115724 (30.08.2012 Gazette 2012/35)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 25.02.2011 US 201113035613 (71) Applicant: Raytheon Company Waltham MA 02451 (US)	(72) Inventors: EGBERT, Ryan, A. Tucson, AZ 85747 (US) HERNANDEZ, Christopher, L. Corona de Tucson, AZ 85641 (US) (74) Representative: Jackson, Richard Eric  Carpmaels & Ransford LLP One Southampton Row London WC1B 5HA London WC1B 5HA (GB)